Exam Professional Cloud Network Engineer topic 1 question 24 discussion

D is correct answer here, refer below link for more details. https://cloud.google.com/cdn/docs/troubleshooting-steps#compression-not-working

Explanation: The "Via" header in an HTTP request indicates the intermediate protocols and recipients between the client and the server. It's typically added by proxies, including Cloud CDN. In some cases, if the web servers are configured to avoid compression for responses with a "Via" header, it might affect the behavior of Cloud CDN. By configuring the web servers to compress responses even if the request has a "Via" header, you ensure that Cloud CDN responses are compressed regardless of the presence of this header.

It is d

Option D is not correct because the Via header is an HTTP header that is added by proxies, caches, and gateways. It is not related to compression of HTTP responses. Therefore, configuring web servers to compress responses even if the request has a Via header would not resolve the issue of Cloud CDN not compressing responses. The correct answer is A. You have not configured compression in Cloud CDN. Cloud CDN supports content compression, but it must be explicitly enabled through the use of the Accept-Encoding header in HTTP requests. By default, Cloud CDN does not compress cacheable content. To enable compression, you need to configure your origin server to send compressed responses, add the Accept-Encoding header to your client requests, and enable content compression in the Cloud CDN configuration.

D: To enable compression, you may have to override your web server's default configuration to tell it to compress responses even if the request had a Via header.

Correct answer is "D"

D Compression isn't working Cloud CDN does not compress or decompress responses itself, but it can serve responses generated by your origin server that are compressed by using encodings such as gzip and DEFLATE. If responses served by Cloud CDN are not compressed but should be, check that the web server software running on your instances is configured to compress responses. By default, some web server software automatically disables compression for requests that include a Via header. To enable compression, you may have to override your web server's default configuration to tell it to compress responses even if the request had a Via header.

Answer is : D

Ans - D